TENGLONG SEALING PRODUCTS MANUFACTORY,Website:://.tenglongsealings.com, YUYAOYUYAO SUNPASS INTERNATIONALFREON PRESSURE GAUGEDescription:Freon pressure gauge is fitted to the airline connection, and can be fitted during filling,discharging or testing. Indication Range: 1~17kg/psi,0~35kg/cm2 or According to customers orderCase Nominal Diameter: 2- 1/2"; 2-3/4",3",4"Case Material: Plastic,Mail SteelWindows: Glass,Polycarbonate,AcrylicMovement: BrassConnection: Bottom ConnectionInlet Thread: 1/4"; 1/8";1/2", 3/8" BSP, BSPT, NPT or According to customers requirements.Scale: Psi,bar,Mpa,Kpa,kg/cm2,Hg single or dual scale or According to customers requirements.